Embryonic identity crisis

Article Abstract:

The Parapandorina and Megasphaera fossils found from the Doushantuo phosphorite rocks of southern China are the oldest unequivocal animal fossils, which as embryos provided a glimpse of animal embryology. Evidence shows that these fossils with features thought to be indicative of animal embryos could be those of bacteria, based on comparisons with Thiomargarita, a giant sulphur bacteria that live in seafloor along the Namibian coast.

Natural history, Animal embryology, Rocks, Sedimentary, Sedimentary rocks

---

Synchrotron X-ray tomographic microscopy of fossil embryos

Article Abstract:

Synchrotron-radiation X-ray tomographic microscopy (SRXTM) is applied to obtain complete three-dimensional recordings of the fossilized embryos at submicrometre resolution. The SRXTM has provided a method of non-invasive analysis that is better than the resolution achieved even by destructive methods, probing the very limits of fossilization and providing insight into embryology during the emergence of metazoan phyla.

Genetic aspects, Animals, Fossil, Fossil animals, Metazoa, Metazoans

---

Fossil embryos from the middle and late Cambrian period of Hunan, south China

Article Abstract:

Fossil embryos provide a crucial test of the assumption that, life histories of living taxa are representative of their antecedents. A collection of embryos from the Middle and Late Cambrian period of Hunan, south China, is presented.

Discovery and exploration, Fossils

Similar abstracts:

• Abstracts: Inheritance of a pre-inactivated paternal X chromosome in early mouse embryos. Complicity of gene and pseudogene
• Abstracts: Atomic transient recorder. Optical pumping of a single hole spin in a quantum dot. Hybridization of electronic states in quantum dots through photon emission
• Abstracts: Seismological constraints on a possible plume root at the core-mantle boundary. Keeping score on the core
• Abstracts: Unleaded high-performance. Lithium isotope evidence for subduction-enriched mantle in the source of mid-ocean-ridge basalts

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.